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Gustation – the sense of taste Taste receptors are located on the tongue and are sensitive to four major tastes: salty, sweet, sour and bitter. Taste receptors respond differentially to the varying shapes of food and liquid molecules.

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Steps in Determining Molecular Shape 1.Draw the Lewis Structure for the Molecule. 2.Count the number of atoms attached to the central atom. 3.Count the number of lone pairs attached to the central atom. 4.Use your counts on steps 2 and 3 to determine the shape of the molecule.

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H2SH2S Dihydrogen monosulfide or just hydrogen sulfide is also known as sewer gas. This colorless, toxic and flammable gas is responsible for the foul odor of rotten eggs. HHS 2(1)+6 = 8e - 2/2 angular

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H2SH2S Dihydrogen monosulfide or just hydrogen sulfide is also known as sewer gas. This colorless, toxic and flammable gas is responsible for the foul odor of rotten eggs. HH S